A reinforcement unit for the renovation of existing hybrid structures

Abstract

This utility model discloses a reinforcement unit for the renovation of existing mixed-structure buildings, relating to the field of building reinforcement technology. It includes a wall, with grouting treatment at the internal gaps of the wall. An underground reinforcement base is installed on the lower inner side of the wall. A reinforcement layer is installed on the inner side of the wall above the underground reinforcement base. Multiple reinforcement longitudinal beams are installed on the outside of the reinforcement layer. Multiple clips are installed on the surface of the reinforcement longitudinal beams. Multiple longitudinally equidistant support beams are installed on the inner side of the reinforcement longitudinal beams. A longitudinal steel column is installed at the other end of the multiple support beams on the same side. A connecting plate is installed at the lower end of the multiple longitudinal steel columns. A pre-embedded base is fitted onto the outside of the connecting plate. The connecting plate and the pre-embedded base are located underground. This utility model, through a series of structural features, extends the service life of the structure, combining safety, economy, and durability, providing a highly efficient solution for the renovation and reinforcement of dilapidated mixed-structure buildings that combines rigidity and flexibility, and integrates internal and external elements.

Description

Technical Field

[0001] This utility model relates to the field of building reinforcement technology, specifically a reinforcement unit for the renovation of existing mixed structures. Background Technology

[0002] The reinforcement and renovation unit for existing mixed structures refers to an independent and reusable technical module developed through systematic technological research and engineering practice to address specific renovation needs of existing mixed structures (especially illegal buildings with safety hazards, high-risk old buildings, etc.). Its core objective is to enable existing mixed structures to meet current safety standards, functional requirements, or extend their service life through structural strengthening, functional optimization, and compliance improvement, while also taking into account economic efficiency and sustainability.

[0003] Traditional reinforcement of dilapidated mixed-structure buildings often employs "external additions" such as encasing the structure in concrete, increasing the cross-section, or adding brick columns. However, these methods have significant drawbacks: poor coordination between the old and new structures, unsystematic repair of cracks in the original walls leading to low load transfer efficiency; lack of foundation reinforcement, resulting in uneven settlement that can easily cause secondary deformation; lateral displacement resistance relying on the stiffness of the original structure, lacking energy dissipation and vibration reduction mechanisms, and insufficient seismic performance; and the need for large-scale demolition and alteration during construction, causing "secondary damage" and incurring long cycles and high costs. Utility Model Content

[0004] The purpose of this invention is to provide a reinforcement unit for the modification of existing hybrid structures, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reinforcement unit for the renovation of an existing hybrid structure, comprising a wall, wherein the internal gaps of the wall are grouted, an underground reinforcement base is installed on the lower inner side of the wall, a reinforcement layer is installed on the inner side of the wall above the underground reinforcement base, multiple reinforcement longitudinal beams are installed on the outside of the reinforcement layer, multiple clips are installed on the surface of the reinforcement longitudinal beams, multiple longitudinally equidistant support beams are installed on the inner side of the reinforcement longitudinal beams, and a longitudinal steel column is installed at the other end of the multiple support beams on the same side, a connecting plate is installed at the lower end of the multiple longitudinal steel columns, and a pre-embedded base is sleeved on the outside of the connecting plate, wherein the connecting plate and the pre-embedded base are located underground.

[0006] Preferably, the surface of the wall has a window, and a reinforcing frame is installed inside the window. Multiple tapered chemical bolts are installed at equal intervals on the four inner walls of the reinforcing frame.

[0007] Preferably, the surface of the buckle is equipped with a plurality of connecting bolts, which pass through the buckle and the reinforcing layer in sequence and extend into the interior of the wall.

[0008] Preferably, multiple supporting inclined beams are installed between two adjacent supporting crossbeams.

[0009] Preferably, the surface of the wall is provided with a plurality of through grooves at equal intervals in the longitudinal direction, and through reinforcing bars are provided inside the through grooves. One end of the through reinforcing bars extends into the interior of the reinforcement layer. The reinforcement layer and the underground reinforcement base are jointly installed with longitudinal reinforcing bars, and transverse connecting bars are provided at the connection between the longitudinal reinforcing bars and the plurality of through reinforcing bars.

[0010] Preferably, a transverse keel is installed between two adjacent reinforcing longitudinal beams, and a tie rod is installed on the surface of the transverse keel, the tie rod passing through from one end of the wall to the other end.

[0011] Preferably, multiple transverse steel bars are installed between two adjacent longitudinal steel columns.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This renovation and reinforcement unit for an existing mixed structure first involves injecting concrete into the wall cracks to strengthen the wall structure. Then, an underground reinforcement base is poured at a location inside the wall, providing support. A concrete reinforcement layer is then poured on the inner side of the wall, with multiple reinforcement longitudinal beams installed on its inner side. The lower ends of these beams connect to the upper ends of the underground reinforcement base, and multiple supporting beams connect the longitudinal beams to the longitudinal steel columns. The longitudinal steel columns and the underground reinforcement base provide multi-angle support for the reinforcement beams, offering strong stability. This progressive design of "grouting repair - foundation reinforcement - multi-layer composite load-bearing" achieves a seamless integration of the original structure and the newly added components. The deep synergy of components: The reinforcement layer seals cracks and transfers loads to the underground reinforcement base, preventing the original wall from failing due to localized tension; the underground reinforcement base disperses the upper load to the deep stable soil layer, reducing the risk of foundation settlement; the concrete reinforcement layer, longitudinal beams, and steel columns form a "rigid frame + flexible infill" structure, which not only improves the overall bending stiffness (2 to 3 times higher than the original structure), but also absorbs some seismic energy through the elastic deformation of the steel columns, significantly enhancing seismic performance; the multi-directional support system effectively constrains the out-of-plane displacement of the wall, controls crack propagation, and extends the service life of the structure, combining safety, economy, and durability, providing a highly efficient solution of "rigid and flexible, internal and external synergy" for the renovation and reinforcement of mixed-structure dilapidated buildings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the underground reinforcement base and the wall according to this utility model;

[0017] Figure 4 This is a schematic diagram of the window reinforcement structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting bolt structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the tie rod structure of this utility model.

[0020] In the diagram: 1. Wall; 2. Underground reinforced base; 3. Reinforcement layer; 4. Window; 5. Reinforced longitudinal beam; 6. Embedded base; 7. Connecting plate; 8. Longitudinal steel column; 9. Horizontal steel; 10. Clip; 11. Supporting horizontal beam; 12. Supporting diagonal beam; 13. Longitudinal reinforcing bar; 14. Through groove; 15. Through reinforcing bar; 16. Connecting bar; 17. Reinforced frame; 18. Tapered chemical bolt; 19. Connecting bolt; 20. Horizontal keel; 21. Tie rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figures 1 to 6As shown, this embodiment targets a reinforcement unit for the renovation of an existing mixed structure, including a wall 1, which is the original wall of the existing mixed structure. Grouting is applied to the internal gaps of the wall 1. An underground reinforcement base 2 is installed on the lower inner side of the wall 1, with the inner side of the wall 1 facing the interior of the building. The underground reinforcement base 2 is located underground, thus distributing the upper load to a deep, stable soil layer, reducing the risk of foundation settlement. A reinforcement layer 3, made of concrete, is installed on the inner side of the wall 1 above the underground reinforcement base 2, sealing the inner side of the wall 1. Multiple reinforcement longitudinal beams 5 are installed on the outside of the reinforcement layer 3, with the lower ends of the reinforcement longitudinal beams 5 connected to the upper ends of the underground reinforcement base 2. 2 provides certain support for the reinforcing longitudinal beam 5, which provides a relatively stable support effect for the reinforcement layer 3. Multiple clips 10 are installed on the surface of the reinforcing longitudinal beam 5, which can enhance the connection strength between the reinforcing longitudinal beam 5 and the reinforcement layer 3. Multiple longitudinally equidistant supporting beams 11 are installed on the inner side of the reinforcing longitudinal beam 5, which also faces the direction of the house. The other end of the multiple supporting beams 11 on the same side is connected to a longitudinal steel column 8. A connecting plate 7 is installed at the lower end of the multiple longitudinal steel columns 8. An embedded base 6 is fitted on the outside of the connecting plate 7. The embedded base 6 is a reinforced concrete base, which provides strong stability for the connecting plate 7 and the multiple longitudinal steel columns 8. The connecting plate 7 and the embedded base 6 are located underground.

[0024] Specifically, a window 4 is provided on the surface of the wall 1, and a reinforcing frame 17 is installed inside the window 4. Multiple tapered chemical bolts 18 are installed at equal intervals on the four inner walls of the reinforcing frame 17. The reinforcing frame 17 can provide a certain support effect for the window 4 to prevent the window 4 from collapsing, and the multiple tapered chemical bolts 18 can increase the connection strength between the reinforcing frame 17 and the window 4.

[0025] Furthermore, multiple connecting bolts 19 are installed on the surface of the buckle 10. The connecting bolts 19 pass through the buckle 10 and the reinforcing layer 3 in sequence and extend into the interior of the wall 1. The connecting bolts 19 connect the buckle 10 and the reinforcing layer 3 together.

[0026] Furthermore, multiple supporting inclined beams 12 are installed between two adjacent supporting crossbeams 11. The supporting inclined beams 12 are connected to the supporting crossbeams 11 and the longitudinal steel columns 8 respectively, providing stability.

[0027] Furthermore, the surface of the wall 1 is provided with multiple through grooves 14 at equal intervals in the longitudinal direction. Through reinforcing bars 15 are provided inside the through grooves 14. One end of the through reinforcing bars 15 extends into the interior of the reinforcement layer 3. The reinforcement layer 3 and the underground reinforcement base 2 are jointly equipped with longitudinal reinforcing bars 13. Transverse connecting bars 16 are provided at the connection between the longitudinal reinforcing bars 13 and the multiple through reinforcing bars 15. The through reinforcing bars 15, the longitudinal reinforcing bars 13 and the connecting bars 16 are welded together to form a relatively stable support frame, which increases the connection stability between the reinforcement layer 3, the underground reinforcement base 2 and the wall 1.

[0028] Furthermore, a transverse keel 20 is installed between two adjacent reinforcing longitudinal beams 5. A tie rod 21 is installed on the surface of the transverse keel 20. The tie rod 21 runs from one end of the wall 1 to the other end. The tie rod 21 strengthens the integrity and anti-lateral displacement ability of the reinforcement system through transverse constraint and prestress transfer. Multiple transverse steels 9 are installed between two adjacent longitudinal steel columns 8.

[0029] The method of use in this embodiment is as follows: First, concrete is injected into the interior through the cracks in wall 1 to strengthen the structure of wall 1. Then, an underground reinforcement base 2 is poured at the underground location on the inner side of wall 1 for support. A concrete reinforcement layer 3 is poured on the inner side of wall 1. Multiple reinforcement longitudinal beams 5 are installed on the inner side of the concrete reinforcement layer 3. The lower end of the reinforcement longitudinal beams 5 is connected to the upper end of the underground reinforcement base 2. Multiple support beams 11 connect the reinforcement longitudinal beams 5 to the longitudinal steel columns 8. The longitudinal steel columns 8 and the underground reinforcement base 2 provide multi-angle support for the reinforcement longitudinal beams 5, providing strong stability. This scheme, through the progressive design of "grouting repair - foundation reinforcement - multi-layer composite load-bearing", realizes the original structure Deep synergy with newly added components: The reinforcement layer 3 seals cracks and transfers loads to the underground reinforcement base 2, preventing the original wall 1 from failing due to localized tension; the underground reinforcement base 2 disperses the upper load to the deep stable soil layer, reducing the risk of foundation settlement; the concrete reinforcement layer 3, together with the longitudinal beams and steel columns, forms a "rigid frame + flexible infill" structure, which not only improves the overall bending stiffness (2 to 3 times higher than the original structure), but also absorbs some seismic energy through the elastic deformation of the steel columns, significantly enhancing seismic performance; the multi-directional support system effectively constrains the out-of-plane displacement of the wall 1, controls crack propagation, and extends the service life of the structure, combining safety, economy, and durability, providing a highly efficient solution of "rigid and flexible, internal and external synergy" for the renovation and reinforcement of mixed-structure dilapidated buildings.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A retrofitting and reinforcing unit for existing hybrid structures, comprising a wall (1), the interior gap of which is grouted, characterized in that: An underground reinforcement base (2) is installed on the lower inner side of the wall (1). A reinforcement layer (3) is installed on the inner side of the wall (1) at the upper end of the underground reinforcement base (2). Multiple reinforcement longitudinal beams (5) are installed on the outside of the reinforcement layer (3). Multiple buckles (10) are installed on the surface of the reinforcement longitudinal beams (5). Multiple longitudinally equidistant support beams (11) are installed on the inner side of the reinforcement longitudinal beams (5). A longitudinal steel column (8) is installed at the other end of the multiple support beams (11) on the same side. A connecting plate (7) is installed at the lower end of the multiple longitudinal steel columns (8). A pre-embedded base (6) is sleeved on the outside of the connecting plate (7). The connecting plate (7) and the pre-embedded base (6) are located underground.

2. The retrofitting and reinforcing unit for an existing hybrid structure according to claim 1, characterized by: The surface of the wall (1) is provided with a window (4), and a reinforcing frame (17) is installed inside the window (4). Multiple tapered chemical bolts (18) are installed at equal intervals on the four inner walls of the reinforcing frame (17).

3. The retrofitting and reinforcing unit for an existing hybrid structure according to claim 1, characterized in that: The surface of the buckle (10) is equipped with a plurality of connecting bolts (19), which pass through the buckle (10) and the reinforcing layer (3) in sequence and extend into the interior of the wall (1).

4. The retrofitting and reinforcing unit for an existing hybrid structure according to claim 1, characterized by: Multiple supporting diagonal beams (12) are installed between two adjacent supporting crossbeams (11).

5. The retrofitting and reinforcing unit for an existing hybrid structure according to claim 1, characterized by: The surface of the wall (1) is provided with a plurality of through grooves (14) at equal intervals in the longitudinal direction. Through reinforcing bars (15) are provided inside the through grooves (14). One end of the through reinforcing bars (15) extends into the interior of the reinforcement layer (3). The reinforcement layer (3) and the underground reinforcement base (2) are jointly equipped with longitudinal reinforcing bars (13). A transverse connecting bar (16) is provided at the connection between the longitudinal reinforcing bars (13) and the plurality of through reinforcing bars (15).

6. The reinforcement unit for the renovation of existing hybrid structures according to claim 1, characterized in that: A transverse keel (20) is installed between two adjacent reinforcing longitudinal beams (5), and a tie rod (21) is installed on the surface of the transverse keel (20). The tie rod (21) passes through one end of the wall (1) to the other end.

7. The reinforcement unit for the renovation of existing hybrid structures according to claim 1, characterized in that: Multiple horizontal steel bars (9) are installed between two adjacent longitudinal steel columns (8).

Images